/*
 * Copyright 2002-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.transaction.aspectj;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Role;
import org.springframework.transaction.annotation.AbstractTransactionManagementConfiguration;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.transaction.annotation.TransactionManagementConfigurationSelector;
import org.springframework.transaction.config.TransactionManagementConfigUtils;

/**
 * {@code @Configuration} class that registers the Spring infrastructure beans necessary
 * to enable AspectJ-based annotation-driven transaction management for Spring's own
 * {@link org.springframework.transaction.annotation.Transactional} annotation.
 *
 * @author Chris Beams
 * @author Juergen Hoeller
 * @see EnableTransactionManagement
 * @see TransactionManagementConfigurationSelector
 * @see AspectJJtaTransactionManagementConfiguration
 * @since 3.1
 */
@Configuration
public class AspectJTransactionManagementConfiguration extends AbstractTransactionManagementConfiguration {

    @Bean(name = TransactionManagementConfigUtils.TRANSACTION_ASPECT_BEAN_NAME)
    @Role(BeanDefinition.ROLE_INFRASTRUCTURE)
    public AnnotationTransactionAspect transactionAspect() {
        AnnotationTransactionAspect txAspect = AnnotationTransactionAspect.aspectOf();
        if (this.txManager != null) {
            txAspect.setTransactionManager(this.txManager);
        }
        return txAspect;
    }

}
